Discuss September 2019

discuss@lists.centos.org

107 participants
74 discussions

How to disable i915 module
by Ian Pilcher 15 Sep '19

15 Sep '19

I am setting up CentOS 7 on my new firewall. This will run as a head- less system, accessed via a serial console when necessary. It's only a 2GB system, so I don't see any reason to have the GPU consuming any of the RAM. I've blacklisted the i915, drm, and drm_kms_helper modules and rebuilt the initramfs, but the i915 module is still being loaded. Anyone know what might be loading the module and how I can stop it? TIA! -- ======================================================================== Ian Pilcher arequipeno(a)gmail.com -------- "I grew up before Mark Zuckerberg invented friendship" -------- ========================================================================

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RPMDB problem
by Fred Smith 14 Sep '19

14 Sep '19

When doing yum operations I get this message at the end of whatever yum was doing: ** Found 1 pre-existing rpmdb problem(s), 'yum check' output follows: brscan4-0.4.8-1.x86_64 is a duplicate with brscan4-0.4.3-1.x86_64 It is true, if I do "rpm -qa | grep brscan" it shows two of them. what's the best/proper way to deal with this? -remove both, reinstall one? -remove one? which one? I don't see a feature in rpm (or yum) for removing a single one of duplicate packages. How? Thanks in advance! Fred -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- "For the word of God is living and active. Sharper than any double-edged sword, it penetrates even to dividing soul and spirit, joints and marrow; it judges the thoughts and attitudes of the heart." ---------------------------- Hebrews 4:12 (niv) ------------------------------

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File server as host for a Windows Server VM?
by miguel medalha 14 Sep '19

14 Sep '19

I hope that someone here can give some advice on the following: I have a Samba based Active Directory. A CentOS 7.6 machine runs as a file server and hosts the Windows user profiles for all the Windows workstations. Now management has decided that they need a Windows server for a couple of administrative applications, which need MS SQL Server. That would be the only role of this Windows. Since the above mentioned server has enough resources (2x Quad Core Xeon 2.66 GHz with HT and 48 GB of RAM, a dual port 10 Gb NIC) I thought of making it a host for a Windows virtual machine using KVM. Given the resources and current setup we have, at the moment it wouldn't be practical to implement both servers as VMs on top of a bare metal hypervisor. According to your experience, is there any motive why I shouldn't use such a setup? Thank you for any insights.

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Opinions on using CR repository in production environments.
by Gwaland 13 Sep '19

13 Sep '19

I was wondering what people's opinions are on running the CR repository on production systems? I'm currently predisposed to not do it since it indicates it hasn't fully gone through QA yet. But from my understanding except for the alt-arch systems these are just recompiles of the redhat RPMs after debranding right? I'm Curious how other people are treating this repository since, from the sounds of it, rpms are going to be in holding here between releases. So would you treat it as a production repository or for testing only? Do we know how it's actually intended to be treated? Any opinion is appreciated.

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why windows 10 can't access centos samba
by qw 13 Sep '19

13 Sep '19

Hi, I can access centos's samba via windows 7, but fail via windows 10. Why? Thanks! Regards Andrew

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clamd / amavisd missing socket
by Jon LaBadie 12 Sep '19

12 Sep '19

I think something along these lines appeared before but I was unable to find them. I'm on a 7.6 system, been running clamav and amavisd-new since 6 days with little problem. On a recent reboot, clamd@amavisd does not start up and fails manual start. The problem seems to be the missing socket that connects the pair, "/var/run/clamd.amavisd/clamd.socket". I believe this should be created by systemd files but I see no indication of them on my system. Anyone know which files might be missing and where to get copies? Or a work around to run clamd@amavisd and get rid of the "*** UNCHECKED ***' additions to my my Subject lines? BTW manual creation of the socket with netcat had no effect on the startup. Jon -- Jon H. LaBadie jon(a)jgcomp.com 11226 South Shore Rd. (703) 787-0688 (H) Reston, VA 20190 (703) 935-6720 (C)

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Increase logging verbosity of saslauthd?
by Jobst Schmalenbach 12 Sep '19

12 Sep '19

Hi CentOS 7.X, sendmail.x86_64 8.14.7-5.el7, cyrus-sasl.x86_64 2.1.26-23.el7 There are conflicting message on how to increase the logging of saslauthd. I know I can do this: /usr/sbin/saslauthd -d -n0 -m /var/run/saslauthd -a pam but that requires a terminal as saslauthd logs the output to STDOUT, this is not what I want. I would like to have it started as a daemon and verbosity of logging increased into a log file. How can I increase the verbosity of logging for saslauthd? thanks -- Jobst Schmalenbach If you think knowledge is expensive, try ignorance.

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Need to update gcc to version >=6 on CentOS 7 ?
by John Chludzinski 11 Sep '19

11 Sep '19

I need to build u-boot on my CentOS 7 machine but encounter this: > *** Your GCC is older than 6.0 and is not supported I've updated the installation on my machine but the current version is: > gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-36) How do I go about updating gcc to version 6 or greater on my CentOS 7 machine? And do so safely?

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NFS Server on Centos 7.6.1810 dying without reason
by Erick Perez - Quadrian Enterprises 07 Sep '19

07 Sep '19

Good morning, in order to post proper documentation, what logs (or log level) do I need to troubleshoot a Centos 7.6.1810 3.10.0-957.27.2.el7.x86_64 tha tis running a NFS server on top LVM on top of XFS on top of VDO on top of MDAM on a 6 SSD disk RAID6 ? This physical NFS server is servign 2 NFS v4.2 shares to 2 physical KVM virtualization hosts. When remote NFS clients start doing intensive stuff (massive writes) , the NFS server crashes and sometimes make the Linux server reboot. form KVM side this is all I get: hvm002 kernel: nfs: server 10.10.10.2 not responding, timed out thanks --------------------- Erick ---------------------

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CUPS job handling
by hw 06 Sep '19

06 Sep '19

Hi, is it somehow possible to make CUPS automatically redirect jobs, and following jobs, away from printers which can not print them to other printers that can print them until the printers that couldn't print them are again able to print them? Like I have a bunch of label printers which are all the same, and all of which are prone to run out of labels or out of ribbon every now and then. It can take hours or even days before someone can refill a printer. Hence it would be very useful if CUPS could be told something like "if printer A doesn't print, move its current job to printer B and divert all new jobs sent to A to printer B instead until A prints again". What exactly happens when a printer that is member of a class can not print a job that was sent to the class? Will the unprintable job be automatically moved to another member of the same class, or will it only be aborted and never printed? With a class of two printers and one of them running out of labels, /var/log/cups/error_log only holds: ... [Job 174733] Stopping unresponsive job. What does this mean? Has the job been printed or not? Has it been printed after I refilled the printer?

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Discuss September 2019